Blood vessel compression systems

Abstract

The present invention relates to a blood vessel compression system that includes blood vessel compression assemblies and apparatus for the insertion thereof.

The invention claimed is: 
     
         1 . A blood vessel compression apparatus comprising an insertion device, the insertion device comprising:
 a base plate comprising two base plate openings which are laterally spaced from each other;   two introducer shafts which are axially movable through the base plate openings, wherein each of the introducer shaft defines an introducer shaft lumen and comprises a sharp distal end;   at least one guide member, affixed to the base plate and extending proximally therefrom;   a push member, axially slidable over the at least one guide member;   a first push shaft and a second push shaft, wherein each of the push shafts is axially movable through the corresponding introducer shaft lumen, wherein each of the push shafts comprises an atraumatic distal end, wherein first push shaft defines a first push shaft lumen and comprises a first side opening which is proximal to an atraumatic distal end of the first push shaft, and wherein the second push shaft defines a second push shaft lumen and comprises a second side opening proximal to an atraumatic distal end of the second push shaft;   a handle assembly coupled to the push member, the handle assembly comprising a first stage handle and a second stage handle, wherein the first stage handle is coupled to the second stage handle; and   a compression assembly comprising a wire and a wire retrieval assembly, the wire retrieval assembly comprising a snare loop configured to transition between a compressed state and an expanded state;   wherein the introducer shafts are attached to the push member and are axially movable therewith;   wherein the push shafts are attached to the second stage handle and are axially movable therewith; and   wherein the push shafts are movable between a retained position, in which the atraumatic distal ends are retained within the introducer shaft lumens, and a pushed position, in which the atraumatic distal ends protrude distally from the sharp distal ends; and   wherein the wire extends at least partially through the second push shaft lumen, and the wire retrieval assembly extends at least partially through the first push shaft lumen.   
     
     
         2 . The blood vessel compression apparatus of  claim 1 , wherein the push member comprises at least one guide channel, and wherein each guide member extends through a corresponding guide channel. 
     
     
         3 . The blood vessel compression apparatus of  claim 1 , wherein the push member comprises push plate. 
     
     
         4 . The blood vessel compression apparatus of  claim 1 , further comprises at least one stopper coupled to the at least one guide member, and configured to prevent axial advancement of the push member along the at least one guide member beyond the at least one stopper. 
     
     
         5 . The blood vessel compression apparatus of  claim 1 , wherein the first stage handle is rotatably coupled to the second stage handle. 
     
     
         6 . The blood vessel compression apparatus of  claim 1 , wherein the first stage handle is releasably coupled to the second stage handle. 
     
     
         7 . The blood vessel compression apparatus of  claim 1 , wherein the wire retrieval assembly further comprises a longitudinal portion extending proximally from the snare loop, and movable axially within the first push shaft lumen. 
     
     
         8 . The blood vessel compression apparatus of  claim 7 , wherein the longitudinal portion is configurated to extend proximally out of the first push shaft, and comprises a retrieval proximal stopping portion disposed proximal to the second stage handle, the retrieval proximal stopping portion sized to be larger than the first push shaft lumen. 
     
     
         9 . The blood vessel compression apparatus of  claim 1 , wherein the first side opening is facing upward or downward with respect to a longitudinal axis defined by the first push shaft. 
     
     
         10 . The blood vessel compression apparatus of  claim 1 , wherein the first side opening comprises two opposing openings, one facing upward and the other facing downward with respect to a longitudinal axis defined by the first push shaft. 
     
     
         11 . The blood vessel compression apparatus of  claim 1 , wherein the snare loop comprises a shape memory material and is pre-shaped to self-expand through the first side opening. 
     
     
         12 . The blood vessel compression apparatus of  claim 1 , wherein the wire comprises a shape memory material and is pre-shaped to bend sideways from the second push shaft lumen through the second side opening, toward the first push shaft. 
     
     
         13 . A blood vessel compression apparatus comprising an insertion device, the insertion device comprising:
 a base plate comprising two base plate openings which are laterally spaced from each other;   two introducer shafts which are axially movable through the base plate openings, wherein each of the introducer shaft defines an introducer shaft lumen and comprises a sharp distal end;   at least one guide member, affixed to the base plate and extending proximally therefrom;   a push member, axially slidable over the at least one guide member;   two push shafts axially movable through the introducer shaft lumens, wherein each of the push shafts comprises an atraumatic distal end, and wherein each of the push shafts defines a push shaft lumen and comprises a side opening which is proximal to the corresponding atraumatic distal end;   a handle assembly coupled to the push member, the handle assembly comprising a first stage handle and a second stage handle, wherein the first stage handle is coupled to the second stage handle; and   a compression assembly comprising a balloon assembly, the balloon assembly comprising: two balloon catheters, each balloon catheter defining a balloon catheter lumen, and two inflatable balloons, each balloon attached to one of the balloon catheters;   wherein the introducer shafts are attached to the push member and are axially movable therewith;   wherein the push shafts are attached to the second stage handle and are axially movable therewith;   wherein the push shafts are movable between a retained position, in which the atraumatic distal ends are retained within the introducer shaft lumens, and a pushed position, in which the atraumatic distal ends protrude distally from the sharp distal ends; and   wherein each balloon catheter extends at least partially through the push shaft lumen of the corresponding push shaft.   
     
     
         14 . The blood vessel compression apparatus of  claim 13 , wherein the balloon catheters comprise shape memory materials, and are pre-shaped to bend sideways through the side openings of the corresponding push shafts. 
     
     
         15 . The blood vessel compression apparatus of  claim 13 , wherein the balloon assembly further comprises at least one catheter proximal stopping portion attached to a proximal portion of at least one of the balloon catheters, the at least one catheter proximal stopping portion disposed proximal to the second stage handle and sized to be larger than the corresponding push shaft lumen. 
     
     
         16 . The blood vessel compression apparatus of  claim 13 , wherein the side openings of both push shafts are facing each other at a non-zero angle. 
     
     
         17 . A blood vessel compression apparatus of comprising an insertion device, the insertion device comprising:
 a base plate comprising a single plate opening;   a single introducer shaft axially movable through the base plate opening, wherein the introducer shaft defines an introducer shaft lumen and comprises a sharp distal end;   at least one guide member, affixed to the base plate and extending proximally therefrom;   a push member, axially slidable over the at least one guide member;   a single push shaft movable through the introducer shaft lumen, wherein the push shafts comprises an atraumatic distal end, and wherein the push shafts defines a push shaft lumen and comprises a side opening which is proximal to the atraumatic distal end;   a handle assembly coupled to the push member, the handle assembly comprising a first stage handle and a second stage handle, wherein the first stage handle is coupled to the second stage handle; and   a compression assembly comprising a balloon assembly, wherein the balloon assembly comprises a single balloon catheter which defines a balloon catheter lumen, and an inflatable balloon attached to the balloon catheter;   wherein the introducer shaft is attached to the push member and is axially movable therewith;   wherein the push shaft is attached to the second stage handle and is axially movable therewith;   wherein the push shaft is movable between a retained position, in which the atraumatic distal end is retained within the introducer shaft lumen, and a pushed position, in which the atraumatic distal end protrudes distally from the sharp distal end; and   wherein the balloon catheter extends at least partially through the push shaft lumen.   
     
     
         18 . The blood vessel compression apparatus of  claim 17 , wherein the balloon catheter comprises a shape memory material, and is pre-shaped to bend sideways through the side opening of the push shaft.